Home / 122,516,999.40-183,775,499.10-79,151,413.80

Finding the Fourth Proportional to 122,516,999.40, 183,775,499.10 and 79,151,413.80

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Solution

The fourth proportional to 122,516,999.40, 183,775,499.10 and 79,151,413.80 is: 118,727,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,516,999.40 : 183,775,499.10 = 79,151,413.80 : x
  2. Step 2: Convert to fraction form
    122,516,999.40/183,775,499.10 = 79,151,413.80/x
  3. Step 3: Cross multiply
    122,516,999.40x = 183,775,499.10 × 79,151,413.80
  4. Step 4: Simplify right side
    122,516,999.40x = 14,546,090,575,565,626
  5. Step 5: Solve for x
    x = 14,546,090,575,565,626/122,516,999.40
  6. Step 6: Final answer
    x = 118,727,120.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.